diff --git a/Tests/iOS/Gemfile.lock b/Tests/iOS/Gemfile.lock
index 8c3183b..1ffd350 100644
--- a/Tests/iOS/Gemfile.lock
+++ b/Tests/iOS/Gemfile.lock
@@ -43,11 +43,13 @@ GEM
       netrc (= 0.7.8)
     cocoapods-try (1.1.0)
     colored (1.2)
+    concurrent-ruby (1.1.10)
     escape (0.0.4)
     fourflusher (2.0.1)
     fuzzy_match (2.0.4)
     gh_inspector (1.0.3)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.8.6)
     minitest (5.10.1)
     molinillo (0.5.5)